JetBlue is generally very responsive on twitter.

United is absolutely worthless.

I tweeted @United asking why (re: United Specials) there weren't (and hadn't been since last Fall) any mileage specials in their weekly specials. Every listing says "mileage special not available. The mileage specials were actually discounted (and thus 'special') whereas the price specials were basically the same prices as every other day.

United's response? "Thank you for your feedback. Do you need assistance with anything?"

Umm... Yeah. So, I basically asked the same question again.
@united why are weekly mileage specials gone? why list 'mileage special not available' when mileage hasn't even been an option for a year?

United responded with "Is this in regards to our Deals and Offers page?"

And I'm thinking "do you have 'weekly specials' posted somewhere else on your site? No? Then that's what I'm talking about. Sheesh!" So when I confirmed that, yes, that's what I'm asking about, their response was:

"Let us know if you have any other questions or concerns.".

Worthless.